Railroad-car brake-gear.



H. M. PPLAGER. RAILROAD GAR BRAKE GEAR.

APPLICATION FILED JUNE 29, 1910.

996,1 34, Patented June 27, 1911.

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HARRY M. PFLAGER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO DOUBLE BODY IBOLSTER COMPANY, OF ST/LOUIS, MISSOURI, A CORPORATION OF NEW JERSEY.

RAILROAD-CAR BRAKE-GEAR.

Specification of Letters Patent. Patented June 27, 1911,

Application filed June 29, 1910. Serial No. 569,584.

My invention relates to that class of air brake-gear for a railroad car in which one or more of the air actuated parts, such as the triple valve or brake-cylinder, are carried by the truck frame, and the other parts,

such as the air pipe system, by the car body, and my invention has for its object to enable the said part-s respectively, to be connected together in the most simple and direct manner for maintaining a co] stant communication thercthrough in the different posit-ions of the truck relatively to the car body. j

It consists in features of novelty as hereinafter described and claimed, reference being had to the accompanying drawing forming part of this specification, whereon,

Figure 1, is a central vertical longitudinal section through the truck and body-bolster of a railroad car, showing preferably, in the present case, the triple valve and auxiliary air reservoir carried by the truck frame, and

the triple valvecon'nected with the air pipe system on the car body according to my 111- vent-ion; Fig. 2, a top plan view thereof to reduced scale, omitting the body-bolster, and .F 1g. 3', a modification of my invention.

. Like letters and numerals of reference denote like parts in all the figures.

a represents one of the truck-bolsters, and b the body-bolster of a railroad car, the truck-bolster a in the present case being adapted to a four-wheeled truck-frame 0 having the usual appendages and brake-gear equipment (not shown), and the bodybolster I) attached to the underside of the car body d in-the ordinary well-known manner.

To the transverse members or transoms 1 (or other convenient part) of the truckframe 0 in the present case, is attached the auxiliary air reservoir 6 and triple valve f of the air brake-gear, and to the triple valve f is connected one end of a pipe 9 which extends therefrom horizontally beneath, the center of the truck-bolster a and is thence directed upward through the center or kingpin openings 3, 3 in the center-plates 4, 4, of the truck-bolster a andbody-bolster I) respectively, the upright portion of the pipe 9 jJeing connected at the top, preferably above the body-bolster b, with the lower part ofa swivel union joint (or equivalent yieldable member) 5 having its upper part connected by preferably, a. tee 6 (or otherwise) with the pipe IL which is in communication with the air pipe system (not shown) on the car body. The vertically disposed portion 9 of the pipe extends through the king pin openings in the truck bolster, and the body bolster, and therefore occupies a vertical position coincident with the axis between the two bolsters, and by locating the swivel oint 5 in the vertical portion of this pipe there is only one flexible joint between the triple valve f and the pipe 7:. which is in communication with the air brake system on the car body.

In the modification of my invention seen in Fig. 3 where the air pipe system on the car body and the horizontal portion of the triple valve pipe are arranged at different levels to those shown in Fig. 1, the pipe hvis connected, preferably by an elbow 7, with the swivel union joint 5, below the top of the body-bolster b, and is directed horizontally (or at any desired inclination) through suitable openings in the latter tovits connection tal portion of the triple val-ve'pipe g unites I with the upright port-ion of this pipe above the bottom of the truck-bolster a instead of below as in Fig. 1; and generally, at whatever level the pipe and horizontal portion of the triple valve pipe may be respectively arranged, the upright portion of the latter is adapted to pass through the center-plate openings of the bolsters coincidentlywith their pivotal axis, and is combined with a single flexible connection between it and the pipe for effecting the required adjustment due to the varying movements between the air actuated parts on the .truck-frameaird car body respectively.

What. I claim as my invention and desire to secure by Letters Patent is 1. In a railroad car brake gear, the combination with a body bolster and the truck bolster of an airpipe, wholly independent bination with a body bolster and a truck bolster of an auxiliary air tank and triple valve, an air pipe leading to thetriple valve, a portion of which pipe passes through the I king-pin openings in the center plates of the can bolsters, and a swivel union oint in said portion of the pipe to permit one part of the pipe to rotate horizontally relative to the opposite part of said pipe.

4. In a railroad car brake gear, the coinbination with a car body and truck bolsters of an air actuated member supported by the car truck, an air pipe passing through the bolsters coincidentally with their pivotal axis and extending to the air actuated member, and a swivel oint located in said pipe,"which swivel joint is independent of the car bolsters and the car body.

In a railroad car brake gear, the combination with a truck of an air actuated I member supported thereby, a pipe leading to said member, a portion of which pipe occupies a positioncoincidentally with the pivotal axis of said truck bolster, and a swivel joint in said pipe above said truck bolster.

6. In a railroad car brake gear, the combination with a truck frame of an air actuated member supported by said truck frame, a pipe leading to said air actuated member, a portion of wh'ich pipe passes through the king-pin opening of the truck frame, and a swivel joint'in said portion of the pipe to permit a part thereof to rotate in a horizontal plane relative to the opposite part.

7. In a railroad carbrake gear, the combination with a truck frameof an auxiliary. air tank carried by said truck frame, a triple valve on the tank, a pipe leading to said triple valve, a portion ofwhich pipe passes through the opening in the center of the truck bolster, and a swivel joint in said portion of the pipe.

8. In a railroad car brake gear, the combination with the body and truck bolsters, of an air actuated member supported by the car truck, and an air pipe leading to the air actuated member, a portion of which air pipe extends through the king-pin openings in the body and truck bolsters.

9. In a railroad car brake gear, the combination with the body and truck bolsters, of an air actuated member supported by the car truck, and an air pipe passing through the king in openings in the bolsters,and which pipg leads to the air actuated member on the truck.

10. In a'- railroad car brake gear of the class described, an air-brake pipe adapted to pass through the king pin openings in the center bearing plates of the car body, and truck bolsters, and which pipe is independent of said bolsters.

11. In a railroad car brake gear of the class descr.ibed,-an air brake pipe adapted to passthrough .the king pin openings in the 'center bearing plates of the car body and truck bolster, which pipe is independent of said bolster, and a flexible joint in said air pipe.

12. In a railroadcar brake gear, the combination with a truck, of an air actuated member carried thereby, a car body bolster pivotally mounted on the truck, and an air pipe leading from the car body to the air actuated member on the truck, a portion of which pipe is coinci(;lent-al with the pivotal axis between the truck and body bolster.

- 5-). In a railroad car brake gear, the combination with a truck, of an air actuated member carried thereby, a car body bolster pivotally mounted on the truck, an air pipe leading from the car body to the air actuated member on the truck, a portion of which pipe is coincidental with the pivotal axis between the -truck and body bolster, and a flexible joint in said air ipe.

, I-IARR M. IFLAGER.

O. '1. Lennon, 0. T. WESTCOTT. 

